JPS60801Y2 - electric cooker - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric cooker such as a rice cooker, and more particularly, to a connection structure between an inner case and a bottom member in this type of electric cooker.

A conventional electric cooking device of this type, for example, a rice cooker, has a structure as shown in FIG.

In this case, the outer case 2 constituting the main case 1 is constructed by connecting a body member 7 made of sheet metal and a bottom member 8 made of synthetic resin by force fitting, and the bottom member 8 is connected via a support 9. The inner case 3 is connected and supported to the bottom 15 of the inner case 3.

Moreover, the upper end of the support 9 is connected to the mounting leg 17 of the heat sink 4 arranged and fixed on the bottom 15 of the inner case 3 and the mounting piece 18 of the heat shield 10 arranged below the inner case bottom 15. It is collinear with the inner case bottom 15 by a screw 19.

In a rice cooker having such a structure, if the inner pot 5 is repeatedly accidentally dropped onto the heat sink 4 when it is stored in the main body case 1 with rice, etc. stored therein, the bottom of the inner case may be damaged. The fixed portion of the mounting leg 17 of 15 is bent downward.

As a result, the bottom member 8 connected to the inner case bottom 15 via the support 9 is also relatively displaced downward, creating a gap in the forced fit between the bottom member 8 and the body member 7, and eventually causing them to come off. It contains the problem of.

The present invention aims to solve the above problem, and an electric cooking device according to an embodiment of the present invention will be described below with reference to FIG.

This example shows a rice cooker that can be used for both cooking and keeping warm.

In the figure, reference numeral 1 is a main body case, and the main body case 1 is
It is composed of an outer case 2 formed by connecting a body member 7 made of sheet metal and a bottom member 8 made of synthetic resin by a force-fit coupling means, and an inner case 3 made of a light alloy such as aluminum. A heat insulating material 20 is provided.

On the upper surface of the bottom part 15 of the inner case 3, a disk-shaped heat sink 4 with a built-in electric heater 6 is mounted on its mounting legs 17, 17...
are fixed by fixing them with screws 19, 19, . . . .

Reference numeral 5 denotes an inner pot that is removably housed in the main case 1;
11 is a center thermo.

Further, a deep dish-shaped heat shield plate 10 is interposed between the heat sink plate 4 and the inner case bottom 15 to reflect the widthwise heat from the heat sink plate 4 upward.

The heat shield plate 10 has its peripheral wall portion 10a attached to the lower end inner surface of the peripheral side wall 16 of the inner case 3 with an appropriate number of rivets 21, 21.
It is attached by fixing with fixing means such as...

Note that a center thermostat 11 is provided at the bottom 10b of the heat shield plate 10.
Holes 22 and 23, 23, . . . are formed for passing the mounting legs 17, 17, .

The rivets 21, 21, . . . are supports 9°9, . . . for connecting and supporting the inner case 3 and the bottom member 8. It also serves as a fixing means for fixing along the .

The other ends 9b, 9b, . . . of the supports 9, 9, . There is.

In the drawing, reference numeral 12 indicates an operating lever, and 13 indicates a center thermostat 11 and a rice cooking switch 1 by operating the operating lever 12.
This is an operating lever for operating 4.

In the rice cooker having such a structure, even if the inner pot 5 containing rice or the like is accidentally dropped onto the heat sink 4 when it is stored in the main body case 1, the impact force will be reduced. It is absorbed into the inner case bottom 15 via the mounting legs 17 of the heat sink 4.

As a result, although the mounting leg fixing portion of the inner case bottom 14 may be deformed, the impact force does not act on the support 9.
The bottom member 8 will not be displaced.

Therefore, it is possible to prevent the generation of a gap and the separation of the bottom member 8 and the body member 7 at the forced bottom connection portion.

In addition, the present invention can of course be applied to other electric cookers having a main body case of a similar structure in addition to the illustrated rice cooker.

Next, the effects of the electric cooker of the present invention will be described.

That is, according to the present invention, one end 9a, 9a... of the supports 9, 9, which are to connect and support the inner case 3 constituting the main body case 1 and the bottom member 8 of the outer case 2, is connected to the inner case 1. Case 3
Since it was fixed along the outer surface of the lower end of the peripheral side wall 16,
Even if the inner pot 5 containing rice, etc. is dropped onto the heat dissipation plate 4 fixed on the inner case bottom 15, the impact force will be absorbed by the inner case bottom 15 and the inner pot 5 will be supported. It does not work on ingredients 9.9...

Therefore, the bottom member 8 of the outer case 2 is prevented from being displaced, and it is possible to prevent the generation of a gap and the separation of the body 7 and the bottom member 8 at the joint portion.

Furthermore, by interposing a deep dish-shaped heat shield plate 10 between the heat sink plate 4 and the inner case bottom 15, the radiant heat from the heat sink plate 4 can be effectively reflected toward the inner pot 5 side, and It can be expected that the heat shielding effect toward the bottom member 8 side will be improved.

Furthermore, one end 9a of the support 9 and the peripheral wall portion 10a of the heat shield plate 10
and are fixed to the circumferential wall 16 of the inner case 3 by the fixing means 21, so the three members can be fixed at the same time with one fixing means 21, which significantly improves assembly work efficiency. do.

[Brief explanation of the drawing]

FIG. 1 is a partially cut-away longitudinal cross-sectional view of a conventional rice cooker, and FIG. 2 is a partially cut-away longitudinal cross-section of a rice cooker according to an embodiment of the present invention. 1...Main case, 2...Outer case,
3... Inner case, 4... Heat sink, 5.
...Inner pot, 6...Electric heater, 7...
...Body member, 8...Bottom member, 9...
Support, 9a... One end of support, 9b...
・Other end of support, 10...Heat shield plate, 10a...
... Peripheral wall part, 15 ... Inner case bottom, 16.
...Inner case circumferential wall, 21...Fixing means.

Claims (1)

[Scope of utility model registration request] The body member 7 and the bottom member 8 are connected by a coupling means such as force fitting.
The inner pot 5 can be removably housed in the case 1, which is composed of an outer case 2 consisting of an electric heater 6, and an inner case 3 having a heat dissipation plate 4 fixed to the inner bottom. The peripheral side wall 16 of the inner case 3 is provided with one ends 9a, 9a, . . . of the supports 9, 9, . The peripheral wall part 10a of the hot plate 10 is fixed to the peripheral wall part 10a along the peripheral side wall 16 by the fixing means 21, 21, . . . while the other ends 9b, 9b, . An electric cooking appliance characterized in that: - is connected to the bottom member 8 of the case 2.